Home / 42,382.08-63,531.72-20,189.52

Finding the Fourth Proportional to 42,382.08, 63,531.72 and 20,189.52

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Solution

The fourth proportional to 42,382.08, 63,531.72 and 20,189.52 is: 30,264.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,382.08 : 63,531.72 = 20,189.52 : x
  2. Step 2: Convert to fraction form
    42,382.08/63,531.72 = 20,189.52/x
  3. Step 3: Cross multiply
    42,382.08x = 63,531.72 × 20,189.52
  4. Step 4: Simplify right side
    42,382.08x = 1,282,674,931.57
  5. Step 5: Solve for x
    x = 1,282,674,931.57/42,382.08
  6. Step 6: Final answer
    x = 30,264.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.